Cement-block machine.



PATENTED Nov. 2o, 1906. w. E. YBOGUM.& G. G. CRAMBERG. CEMENT BLOCK MACHINE.

APPLICATION FILED MAR. 13, 1906.

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No. 666,426. PATENTED NCV. 20,1966. W. E. YBCCUM C C. CCRAMBERC.

CEMENT BLCCK MACHINE.

APPLICATION FILED MAB.. 13, 1906.

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UNITED sTATns LAPATENT OFFICE.

l/VILLIAM E. YEOCUM AND GEORGE G. CRAMBERG, OF DALLAS CITY,

ILLINOIS, ASSIGNORS TO STAR CEMENT BLOCK MACHINE COM- PANY, OF DALLAS CITY, ILLINOIS.

Specification of Letters Patent.

Patented Nov. 20, 1906.

Application filed March 13, 1906.. Serial No. 305,872.

To all whom, 'llt mln/y concern:

ture may be made without departing from Be it known that we, WILLIAM E. Ynoi the spirit or sacriiicing any of the advanoUM and GEORGE G. CRAMBERG, citizens of i tages of the invention.. the United States, residing at Dallas City, in

the county of Hancock and State of Illinois,

have invented a new and useful Cement- Block Machine, of which the following is a specification.

This invention relates to machines for the j Fig. 4 Is a detail perspective view of one of formation of blocks or bricks from cement, concrete, and other plastic materials.

The principal object of the invention is to provide a machine whereby the plastic material may be compressed and solidified within the mold-box at a single operation, thus avoiding the delay incident to the tamping operations usually followed in this art.

A further object of the invention is to provide a block-forming machine in which the block-mold after being filled with plastic material is moved under a press which operates to compress and solidify the material at a single movement.

A still further object of the invention is to provide a block-forming machine including a table or frame having a press and provided with rails for the support of the block-mold, the latter traveling from the lling or receiving point to the press and from thence to a discharge-point.

A still further object of the invention is to provide a block-forming machine in which a block-mold is provided with wheels arranged to travel on rails to a pressing device which serves to raise the mold bodily from the rail to effect the desired. compression and then returns the mold-box to the rails in order that the latter may be run to a dischargingpoint.

A still further object of the invention is to provide a block-forming machine in which blocks of irregular shape may be subjected to uniform pressure throughout in order that all parts may be of uniform density.

With these and other objects in view, as will more fully hereinafter appear, the invention consists in certain novel features of construction and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the'bstruc- In the accompanying drawings, Figure lis a vertical section of a block-forming machine constructed in accordance with the invention. Fig. 2 is an end elevation of the same, parts being shown in section. Eig. 3 is a transverse sectional view of the mold-box.

the pallet-lifters.

Similar characters of reference are employed to indicate corresponding parts throughout the several iigures of the drawings.

The working parts of the machine are supported on a suitable frame, which in the present instance is formed of two main sections and l1, mounted on a suitable base or sills, and these are connected by a pair of longitudinallydisposed parallel bars or strips 12, which form the upper bed of the machine.

The present structure includes an upper head-block l5, that is connected to the base by a plurality of vertically-disposed bolts 16, designed to resist upward thrust, and the head-block carries a die 17 o f a contour corresponding to the shape of the block to be made, and the construction is preferably such that the dies 17 may be removed for the substitution of others of different shape and size.

Near the lower portion of the machine are bearings for the reception of a transverselydisposed shaft 19, that is provided at one or at both ends with operating-handles 20 for manual manipulation, or the shaft may have suitable power connections, if desired. To the base/or bed plate are secured four brackets or standards 22, these being arranged in pairs below a vertically-movable table or platen 23, and said table orplaten is also provided with corresponding brackets 24. The upper and lower brackets are connected by the links and 26 of toggle-levers, these links being connected by pivot pins or bolts 27. The bolts 27 are connected to the central links 30 of the toggle-levers, and these links 30 are connected to two cranks 31, that are mounted on the shaft 19, so that when the shaft is turned the several toggle-levers will be operated for the purpose of raising or IOO lowering the platen 23, and if a mold-box is placed on the platen it will be carried up against the die member 17, and the plastic material in the mold-box will be subjected. to pressure.

At intervals along the rails or strips 12 are vertically-disposed standards 32, which carry T-bars forming rails 83 for the reception of rails 34, that project from the opposite sides of the mold-box 35. The mold-box is preferably formed of metal and is of a contour corresponding to that of the block to be made. In the present instance the block x is approximately U-shaped, its opposite ends being provided with inwardly-extending tongues or flanges and the lower mold-face being designed to form the front face of the block, while the space between the two end flangesforms partof an air-space to be formed in the wall of the building.

Within the mold-box is placed a pallet 37, which maybe plain or may be provided with an ornamental surface to be reproduced in the molded block. The opposite end portions of the pallet rest on the lower horizontal flanges 3S of carrier members 39, the vertical portions of these members resting against the end walls of the mold, while the upper horizontal portions of such members extend out beyond the end walls of the mold in convenient position to form handles for lifting out the finish ed block and the pallet.

In the operation of the machine the lifting members 39 are rst placed within the empty mold-box, and then a pallet 37 is inserted. The plastic material is then filled in and troweled down approximately to the shape of the block to be made, after which the mold-box is run along on the rails 33 to a position between the head-block 15 and the platen 23. The shaft 19 is then turned, either by power or by manipulating the levers 20, and the toggle-joints are straightened for the purpose of raising the platen 23. The platen engages against the bottom of the mold-box and lifts the same until the rollers 34 are clear of the rails, and as the upward movement continues the plastic material is forced against the die 17 and is compressed to any desired extent, this single compressing operation taking the place of the longer and more expensive hand-tamping, which is usually followed in the formation of concrete blocks of this general type. After pressing the block the shaft 19 is turned in the opposite direction and the platen is lowered, allowing the rollers 34 to descend into contact with the rails, after which the mold-box is run back on the rails to the initial position, and the finished block is lifted out by grasp ing the upper flanges of the lifting members 39, the block and ballet being removed together and carried away to the drying-floor, after which thehand-pieces are again placed in the mold-box and a fresh palletinserted in readiness for another operation.

We claim- 1. In a block-molding machine, a frame, a pair of spaced elevated rails supported thereby, a mold-box having wheels or rollers running on said rails, a stationary head-block supported over the rails, a shaping-die carried thereby, a vertically-movable platen arranged below the head-block in position to receive the mold-box, and means for raising and lowering the platen after the mold-box .has been moved to position thereon.

2. In a block-making machine, a frame, a head-block, a shaping-die carried thereby,a platen arranged below the head-block, togglelevers for raising and lowering the platen, a pair of elevated rails extending between the platen and the head-block, and a wheeled mold-box mounted on the rails and movable between filling and pressing positions, substantially as specified.

3. In a block-molding machine, the combination with a press, of a mold-box, a platen adapted to form the bottom of the box and provided with recessed end portions, and a pair of handled plates, the inner ends of which are arranged to extend into the recesses, while the outer ends project from the opposite ends of the mold-box to permit removal of the platen.

In testimony that we claim the foregoing as our own we have hereto affixed our signatures in the presence of two witnesses.

VILLIANI E. YEOCUM. GEORGE G. CRAMBERG.

I/Vitnesses.:

CLAUDE J. DoTY, W. I-I. BLIss. 

